Replace targetHasUnifiedMultisampling in GrPB constructor

src/gpu/text/GrAtlasTextBlob.cpp

Index: src/gpu/text/GrAtlasTextBlob.cpp
diff --git a/src/gpu/text/GrAtlasTextBlob.cpp b/src/gpu/text/GrAtlasTextBlob.cpp
index e4fa34973cb5253a7caca610023f0aa667d28f59..0ead354204e9de1ad84900794ab81eac2e453fc3 100644
--- a/src/gpu/text/GrAtlasTextBlob.cpp
+++ b/src/gpu/text/GrAtlasTextBlob.cpp
@@ -419,7 +419,7 @@ void GrAtlasTextBlob::flushCached(GrContext* context,
                                   SkScalar x, SkScalar y) {
     // We loop through the runs of the blob, flushing each.  If any run is too large, then we flush
     // it as paths
-    GrPipelineBuilder pipelineBuilder(grPaint, dc->isUnifiedMultisampled());
+    GrPipelineBuilder pipelineBuilder(grPaint, dc->mustUseHWAA(grPaint));
 
     GrColor color = grPaint.getColor();
 
@@ -448,7 +448,7 @@ void GrAtlasTextBlob::flushThrowaway(GrContext* context,
                                      const SkMatrix& viewMatrix,
                                      const SkIRect& clipBounds,
                                      SkScalar x, SkScalar y) {
-    GrPipelineBuilder pipelineBuilder(grPaint, dc->isUnifiedMultisampled());
+    GrPipelineBuilder pipelineBuilder(grPaint, dc->mustUseHWAA(grPaint));
 
     GrColor color = grPaint.getColor();
     for (int run = 0; run < fRunCount; run++) {